160777667720 has 16 divisors (see below), whose sum is σ = 361749752460. Its totient is φ = 64311067072.

The previous prime is 160777667663. The next prime is 160777667737. The reversal of 160777667720 is 27766777061.

It can be written as a sum of positive squares in 2 ways, for example, as 160719206404 + 58461316 = 400898^2 + 7646^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2009720807 + ... + 2009720886.

Almost surely, 2^160777667720 is an apocalyptic number.

160777667720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160777667720 is an abundant number, since it is smaller than the sum of its proper divisors (200972084740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

160777667720 is a wasteful number, since it uses less digits than its factorization.

160777667720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019441704 (or 4019441700 counting only the distinct ones).

The product of its (nonzero) digits is 7260624, while the sum is 56.

The spelling of 160777667720 in words is "one hundred sixty billion, seven hundred seventy-seven million, six hundred sixty-seven thousand, seven hundred twenty".